Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 99 · 40 sums

The trick (Nikhilam Navatashcaramam Dashatah): Write how far each number is from the base (− if below, + if above). Left part: cross-add — one number plus the other’s difference. Right part: multiply the two differences; it must have as many digits as the base has zeros (carry the extra). One above and one below? The right part is negative: take 1 from the left part and write base − that amount.

1. 1.14 × 14 =
2. 2.7 × 8 =
3. 3.111 × 115 =
4. 4.96 × 95 =
5. 5.103 × 105 =
6. 6.1021 × 1025 =
7. 7.115 × 105 =
8. 8.8 × 6 =
9. 9.86 × 98 =
10. 10.109 × 104 =
11. 11.993 × 965 =
12. 12.103 × 98 =
13. 13.1026 × 993 =
14. 14.111 × 95 =
15. 15.11 × 7 =
16. 16.1008 × 977 =
17. 17.93 × 99 =
18. 18.99 × 93 =
19. 19.112 × 89 =
20. 20.11 × 12 =
21. 21.985 × 992 =
22. 22.1001 × 1038 =
23. 23.1029 × 995 =
24. 24.14 × 11 =
25. 25.107 × 89 =
26. 26.6 × 8 =
27. 27.113 × 90 =
28. 28.114 × 93 =
29. 29.988 × 973 =
30. 30.88 × 89 =
31. 31.94 × 97 =
32. 32.103 × 114 =
33. 33.96 × 93 =
34. 34.111 × 99 =
35. 35.14 × 7 =
36. 36.102 × 98 =
37. 37.88 × 91 =
38. 38.87 × 94 =
39. 39.12 × 13 =
40. 40.6 × 6 =

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